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PHASE SYNCHRONIZATION AND CODING CHAOS WITH SEMICONDUCTOR LASERS

M. Bulinski1,* , M. L. Pascu2, I. R. Andrei2

Affiliation

  1. University of Bucharest, Faculty of Physics 77125 Bucharest-Mgurele, P.O. Box MG-11, Romania
  2. The National Institute for Lasers, Plasma and Radiation Physics, Lasers Department, P.O. Box MG36, RO 77125, Bucharest, Romania

Abstract

The synchronization phenomena that appear in nonlinear dynamics of two coupled external cavity semiconductor lasers can be used in communications systems. Numerically solving the Lang-Kobayashi system of equations for such a system we analyze the possibility of transmitting encoded information by modulating either the transmitter output light or the transmitter injected current. The synchronizing of lasers chaotic orbits are analyzed using both the phase for electric fields and Hilbert phase for intensities of the diode lasers light..

Keywords

Chaos, Encoded communications, Semiconductor lasers.

Submitted at: Oct. 14, 2003
Accepted at: March 15, 2004

Citation

M. Bulinski, M. L. Pascu, I. R. Andrei, PHASE SYNCHRONIZATION AND CODING CHAOS WITH SEMICONDUCTOR LASERS, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 1, pp. 77-86 (2004)